Wire brush.



O. OLSON.

WIRE BRUSH.

Patented Nov. 21, 1911.

unirsi) srarns `PATENT omnes.

OLIVER OLSON, OF GLARINDA, IOWA, ASSIGNOR OF ONE-THIRD 'IO CHARLES S. I-IOYT,

` OF CLARINDA, IOWA. i i A WIRE BRUSH.

To all whom it may concern: Be it known that I, OLIVER OLSON, citizen of the United States, residing at Clarinda, in the county of Page and Sta-te of Iowa, have invented certain new and useful Improvements in Wire Brushes, of which the following is a specification.

This invention relates to rotary brushes for cleaning and polishing castings and the like, and has for its object the provision of acomparatively simple and thoroughlyeficient device of this character, the construction of'which is such that when the outer ends of the tufts or bristles become worn or damaged, said tufts may be readily removed from the brush head and reversed so as to present afresh polishing` surface to the work and thus avoid the necessity of inserting a new set of bristlesor tufts in said brush. y,

A further object is to provide a rotary brush including a head formed of co-acting clamping members having inwardly extending teeth, there being a division member or ring interposed between the clamping members and provided with similar teeth intermeshing with the teeth on the clamping members and adapted to engage the bristles or tufts when said clamping members are fastened together.

A further object is to provide a brush head, the clamping members of which are provided with laterally extending lugs so that any number of said clamping members may be united, thus to form brushes of different lengths.

G A still further object of the invention is generally to improve this class of devices, so as to increase their utility, durability and eficiency.

For a full understanding of the invention reference is to be had to the following description and' accompanying drawing in which Figure 1 is a front elevation partly in section of a brush head constructed `in ac-. cordance with my invention, showing the same in position on a driving sha-ft, some of the bristles being removed to clearly show the construction of the several parts. Fig. 2 is a detail plan view of a portion of the head, showing' the manner of retaining the bristles or tufts therein. Fig. 3 is a per- Specicaton of Letters Patent. Patented NOV. 21, 1911.

Application led October 26, 1910.

Serial No. 589,187.

spective view of one of the clamping members and the division member separated. Fig. 4: is a plan view partly in section illustra-ting a modified form of the invention.

Corresponding and like part-s are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

The improved brush head forming the subject-matter of thepresent invention comprises a head formed of'spaced clamping members 5 and 6, preferably `in the form of flat disks and provided with transversely alined openings 7 adapted to receive a driving shaft 8.' Extending laterally from the inner faces of the clamping members 5 and 6 at the outer edges thereof are spaced teeth 9 defining intermediate recesses 10 adapted to receive the brush bristles or tufts 11. Interposed between the clamping members 5 and 6 is a division member or ring, preferably formed in two sections 12 and 13, the abutting faces of which are flat and provided with perforated lugs 14 adapted to register with each other to .permit the insertion of bolts or similar fastening devices 15. Each section of the division member, or ring, is provided with laterally extending teeth 16 adapted to intermesh with the teeth 9 on the adjacent clamping member, the spaces or recesses 17 between the teeth 16 being also adapted to receive tufts or bristles, so that when the clamping members are assembled, the tufts or bristles of the brush will be firmly clamped in place on the head and arranged in staggered relation on opposite sides of the division member.

The clamping members or disks 5 and 6 are pierced by a plurality of transverse openings 20 preferably disposed. concentric with the shaft receiving openings 7 to form a passage for bolts or similar fastening devices 21 so that after the bristles or tufts 11 are positioned between the clamping members and the division member. and the fastening devices 21 adjusted, said tufts will be effectually held against accidental displacement.

The tufts 11 are preferably formed of a plurality of strands of wire of equal. length, said strands being united at their central portions by a clamping band or wire 22,

' which latter bears against the inner face of the adjacent tooth as best shown in Fig. 2 of the drawings, thus to assist in preventing the tufts from being thrown outwardly by centrifugal force when the brush is rotated.

It will here be noted that the tufts extend within the clamping members to a point adjacent the shaft receiving opening, the distance between the inner ends of the tufts and the binding wire 22 being approximately equal to the distance between the outer ends of the tufts and said binding wire, so that when the outer or exposed ends of the tufts become worn or damaged, a fresh polishing surface may be presented to the work by separating the clamping members and reversing the position of the tufts.

Extending laterally from the clamping members 5 and 6 are perforated lugs 23 by means of which either clamping member may be connected to a similar clamping member, thus to lengthen or shorten the brush, according to the work to be performed.

If desired, the tufts l1 instead of being formed of straight continuous strands, may be bent upon themselves and connected by clamping bands 24, the opposite ends of the bristles or tufts being extended through the adjacent recesses 10 and 17, as best shown in Fig. 4 of the drawings.

Then the outer ends of the bristles or tufts shown in Fig. 4 0f the drawings become worn or too short, said outer ends may be moved to extended position by releasing the clamping members and pressing outwardly on the bent ends of the tufts. The portions of the tufts housed within the clamping members are substantially the same length as the outer or exposed portions thereof so that a considerable range of adjustment of the tufts is obtained.

Having thus described the invention what is claimed as new is 1. A rotary brush including co-acting clamping members having laterally extending teeth, a division member interposed between the clamping members and having spaced teeth extending laterally from the opposite faces thereof and intermeshing with the teeth of the clamping members, reversible tufts supported between the clamping members by engagementwith the adjacent teeth, and means encircling the tufts and bearing against vthe inner faces of the adjacent teeth for preventing accidental displacement of said tufts.

2. A rotary brush including co-acting clamping members having laterally extending teeth, a division member interposed between the clamping members and. having spaced teeth extending laterally from the opposite sides thereof and intermeshing with the teeth of said clamping members, reversible tufts supported between the clamping members by engagement with said teeth, and means carried by the tufts and engaging the inner faces of the teeth for preventing longitudinal movement of said tufts.

3. A rotary brush including co-acting clamping members having inwardly extending teeth, a division member interposed between the clamping members and having teeth extending laterally from the opposite sides thereof and intermeshing with the teeth on said clamping members, reversible tufts supported between the clamping members by engagement with the teeth, and clamping bands encircling the tufts and bearing against the inner faces of the adjacent teeth.

4. A rotary brush including co-acting clamping members having laterally extending Vteeth and provided with transversely alined openings for the reception of a line shaft, and straight tufts supported between the clamping members by engagement with the teeth, t-he inner ends of said tufts being extended to the shaft receiving openings.

5. A rotary brush including co-acting members having inwardly extending teeth, a division member interposed between the clamping members and having teeth extending laterally from the opposite sides thereof and intermeshing with the teeth on said clamping members, tufts disposed on opposite sides of the division member and clamped between the adjacent teeth, clamping bands encircling the tufts and bearing against the inner faces of the adjacent teeth, and fastening devices piercing the clamping members for holding the latter in assembled position.

6. A rotary brush including co-acting clamping members having their inner faces provided with a marginal row of spaced teeth defining intermediate seating recesses, an annular division member interposed between the clamping members and having teeth extending laterally from the opposite sides thereof and adapted to enter the seating recesses in the clamping members, the teeth of the division member being spaced apart to form seating recesses for the reception of the teeth on the clamping members, tufts fitting within the several seating recesses and arranged in staggered relation on opposite sides of the division member, and fastening devices extending through the clamping members for holding the several parts in assembled position.

7 A rotary brush including co-acting clamping members having their inner faces provided with laterally extending teeth, an annular division member interposed between the clamping members and formed of detachably connected sections having flat inner abutting faces, the other face of each section of the division member being provided with laterally extending teeth bers for retaining the several parts in as- 10 adapted to intermesh with the teeth on the sembled position.

adjacent clamping member, tufts inter- In testimony whereof I aiX my signature posed) between the teeth of the clamping in presence of two witnesses.

inem er and division member respectively,

lugs secured to the outer faces of the elamp- OLIVER OLSON' [L S] ing members for engagement with oorre- Witnesses:

sponding lugs on an adjacent clamping mem- A. B. CLARK,

ber, and means piercing said clamping meIn- WILLIAM STIPE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

